Well I have my trusty toilet brush, but nothing good enough to shift the Oil/Carbon/general mess at the moment...

Tried to give it a little once over on the CDTI yesterday, but after a few years of neglect its going to take a good few hours of stripping and detailing...

I'm going to need a lot of product, but whats the best, or cheapest to use, anyone have any home made or cheap alternatives to "Gunk" etc?... It basically looks like an un-maintained old tractor engine at the min and probably going to need a few liters of whatever I end up using, just don't want to break the bank on it...

Any suggestions?